Search a number
-
+
163152025 = 526739697
BaseRepresentation
bin10011011100110…
…00000010011001
3102100222222111121
421232120002121
5313231331100
624104525241
74020524611
oct1156300231
9370888447
10163152025
1184105593
1246780821
1327a5537a
141794da41
15e4cb51a
hex9b98099

163152025 has 12 divisors (see below), whose sum is σ = 202630012. Its totient is φ = 130314240.

The previous prime is 163152023. The next prime is 163152037. The reversal of 163152025 is 520251361.

It can be written as a sum of positive squares in 6 ways, for example, as 29888089 + 133263936 = 5467^2 + 11544^2 .

It is not a de Polignac number, because 163152025 - 21 = 163152023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163152023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11977 + ... + 21673.

Almost surely, 2163152025 is an apocalyptic number.

It is an amenable number.

163152025 is a deficient number, since it is larger than the sum of its proper divisors (39477987).

163152025 is an equidigital number, since it uses as much as digits as its factorization.

163152025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380 (or 10375 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 163152025 is about 12773.0977057251. The cubic root of 163152025 is about 546.4253295142.

The spelling of 163152025 in words is "one hundred sixty-three million, one hundred fifty-two thousand, twenty-five".

Divisors: 1 5 25 673 3365 9697 16825 48485 242425 6526081 32630405 163152025